TY - GEN
T1 - Luminescent properties and mechanism of Gd 1-x-yAlO 3:Tb x,RE y gradational combinatorial library
AU - Lan, Luo
AU - Zhihua, Xiong
AU - Naigen, Zhou
AU - Hepeng, Zhang
PY - 2012
Y1 - 2012
N2 - The combinatorial material library approach is an excellent innovation for inorganic functional material research, and it can discover and screen new materials efficiently. In this paper, it is used to quickly find and improve Tb 3+ activated gadolinium aluminate perovskite phosphors (Gd 1-x-yAlO 3:Tb x,RE y, RE ion vary among Ce 3+,4+, Dy 3+, abbreviate as GAP:Tb,RE). Under UV light excitation, Gd 1-x-yAlO 3:Tb x,RE y gradational combinatorial library indentifies the "lead" green luminescent compound as GAP:Tb0.1 from all the GAP:Tbx (x=0.050.15) candidates in a quick way. Then the relationship between sensitizers and activators can be also mapped out quickly, that Dy 3+ is a good sensitizer for Tb3+ activator while Ce 3+, 4+is not a suitable one. The photoluminescent excitation (PLE) and photoluminescent emission (PL) spectral indicate the resonance energy transfer between the activator and sensitizer must have happened, which leads to Ce 3+,4+ co-doping decrease Tb3+ green luminescence( 5D 4→ 7F 5, 544nm) while Dy 3+ co-doping increase green luminescence. The candidates in the library are prepared in powder form by nitric-citric method for more detailed characterization. All the screening results, obtained from the combinational library, are coherent with the powder phosphor experiments.
AB - The combinatorial material library approach is an excellent innovation for inorganic functional material research, and it can discover and screen new materials efficiently. In this paper, it is used to quickly find and improve Tb 3+ activated gadolinium aluminate perovskite phosphors (Gd 1-x-yAlO 3:Tb x,RE y, RE ion vary among Ce 3+,4+, Dy 3+, abbreviate as GAP:Tb,RE). Under UV light excitation, Gd 1-x-yAlO 3:Tb x,RE y gradational combinatorial library indentifies the "lead" green luminescent compound as GAP:Tb0.1 from all the GAP:Tbx (x=0.050.15) candidates in a quick way. Then the relationship between sensitizers and activators can be also mapped out quickly, that Dy 3+ is a good sensitizer for Tb3+ activator while Ce 3+, 4+is not a suitable one. The photoluminescent excitation (PLE) and photoluminescent emission (PL) spectral indicate the resonance energy transfer between the activator and sensitizer must have happened, which leads to Ce 3+,4+ co-doping decrease Tb3+ green luminescence( 5D 4→ 7F 5, 544nm) while Dy 3+ co-doping increase green luminescence. The candidates in the library are prepared in powder form by nitric-citric method for more detailed characterization. All the screening results, obtained from the combinational library, are coherent with the powder phosphor experiments.
KW - Gadolinium aluminate pervokite (GAP)
KW - Ion beam sputtering
KW - Luminescence
KW - Resonance energy transfer
KW - The thin-film combinatorial library
UR - https://www.scopus.com/pages/publications/84867250759
U2 - 10.4028/www.scientific.net/AMR.557-559.674
DO - 10.4028/www.scientific.net/AMR.557-559.674
M3 - 会议稿件
AN - SCOPUS:84867250759
SN - 9783037854570
T3 - Advanced Materials Research
SP - 674
EP - 679
BT - Advanced Materials and Processes II
T2 - 2nd International Conference on Chemical Engineering and Advanced Materials, CEAM 2012
Y2 - 13 July 2012 through 15 July 2012
ER -